The Inca Trail to Machupicchu is rated amongst the ten best trekking trails in the world because of the exquisite beauty of it's natural surroundings. These includes different ecological areas from the high Andean plains, to the cloud forest with an impressive variety of altitudes, climates and ecosystems. You will cross two high altitude passes (The highest is known as Warmi wañuska or Death Woman pass at 4200m.a.s.l.